1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
4 See end of file for further details. For commonly done items, please see the
5 COMMON ITEMS: section later in the file. These instructions assume that you
6 basically know what you are doing. If not, then please consult the FreeBSD
9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
11 Items affecting the ports and packages system can be found in
12 /usr/ports/UPDATING. Please read that file before running portupgrade.
14 NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping
15 from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of
16 stable/10, and then rebuild without this option. The bootstrap process from
17 older version of current is a bit fragile.
19 20161206 p26 FreeBSD-SA-16:36.telnetd
21 FreeBSD-SA-16:38.bhyve
22 FreeBSD-EN-16:19.tzcode
23 FreeBSD-EN-16:20.tzdata
25 Fix possible login(1) argument injection in telnetd(8). [SA-16:36]
26 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37]
27 Fix possible escape from bhyve(8) virtual machine. [SA-16:38]
28 Fix warnings about valid time zone abbreviations. [EN-16:19]
29 Update timezone database information. [EN-16:20]
31 20161102 p25 FreeBSD-SA-16:35.openssl
33 Fix OpenSSL remote DoS vulnerability. [SA-16:35]
35 20161025 p24 FreeBSD-SA-16:15.sysarch [revised]
37 Fix incorrect argument validation in sysarch(2). [SA-16:15]
39 20161010 p23 FreeBSD-SA-16:29.bspatch
40 FreeBSD-SA-16:30.portsnap
41 FreeBSD-SA-16:31.libarchive
43 Fix bspatch heap overflow vulnerability. [SA-16:29]
45 Fix multiple portsnap vulnerabilities. [SA-16:30]
47 Fix multiple libarchive vulnerabilities. [SA-16:31]
49 20160926 p22 FreeBSD-SA-16:26.openssl [revised]
51 Fix OpenSSL regression introduced in SA-16:26.
53 20160923 p21 FreeBSD-SA-16:26.openssl
55 Fix multiple OpenSSL vulnerabilitites.
57 20160725 p20 FreeBSD-SA-16:25.bspatch
58 FreeBSD-EN-16:09.freebsd-update
60 Fix bspatch heap overflow vulnerability. [SA-16:25]
62 Fix freebsd-update(8) support of FreeBSD 11.0 release
63 distribution. [EN-16:09]
65 20160604 p19 FreeBSD-SA-16:24.ntp
67 Fix multiple vulnerabilities of ntp.
69 20160531 p18 FreeBSD-SA-16:20.linux
70 FreeBSD-SA-16:21.43bsd
71 FreeBSD-SA-16:22.libarchive
73 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
74 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
75 Fix directory traversal in cpio(1). [SA-16:22]
77 20160517 p17 FreeBSD-SA-16:18.atkbd
78 FreeBSD-SA-16:19.sendmsg
80 Fix buffer overflow in keyboard driver. [SA-16:18]
82 Fix incorrect argument handling in sendmsg(2). [SA-16:19]
84 20160504 p16 FreeBSD-SA-16:17.openssl
88 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
90 Fix excessive latency in x86 IPI delivery. [EN-16:07]
92 Fix memory leak in ZFS. [EN-16:08]
94 20160429 p15 FreeBSD-SA-16:16.ntp
96 Fix multiple vulnerabilities of ntp.
98 20160316 p14 FreeBSD-SA-16:14.openssh-xauth
99 FreeBSD-SA-16:15.sysarch
100 FreeBSD-EN-16:04.hyperv
101 FreeBSD-EN-16:05.hv_netvsc
103 Fix OpenSSH xauth(1) command injection. [SA-16:14]
104 Fix incorrect argument validation in sysarch(2). [SA-16:15]
105 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
106 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05]
108 20160303 p13 FreeBSD-SA-16:12.openssl
110 Fix multiple vulnerabilities of OpenSSL.
112 20160130 p12 FreeBSD-SA-16:11.openssl
114 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
116 20160127 p11 FreeBSD-SA-16:09.ntp
117 FreeBSD-SA-16:10.linux
119 Fix multiple vulnerabilities of ntp. [SA-16:09]
121 Fix Linux compatibility layer issetugid(2) system call
122 vulnerability. [SA-16:10]
124 20160114 p10 FreeBSD-SA-16:07.openssh
126 Fix OpenSSH client information leak. [SA-16:07]
128 20160114 p9 FreeBSD-EN-16:01.filemon
130 FreeBSD-EN-16:03.yplib
131 FreeBSD-SA-16:01.sctp
133 FreeBSD-SA-16:03.linux
134 FreeBSD-SA-16:04.linux
136 FreeBSD-SA-16:06.bsnmpd
138 Fix multiple stability and locking problems in filemon(4). [EN-16:01]
139 Fix pf(4) generating bad TCP checksums. [EN-16:02]
140 Fix infinite loop in YP/NIS client library. [EN-16:03]
141 Fix remote denial of service in SCTP. [SA-16:01]
142 Update NTP to 4.2.8p5. [SA-16:02]
143 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
144 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
145 Fix crash in TCP MD5 signatures. [SA-16:05]
146 Fix insecure default permissions for snmpd.config. [SA-16:06]
148 20151205 p8 FreeBSD-SA-15:26.openssl
150 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
152 20151104 p7 FreeBSD-SA-15:25.ntp [revised]
153 FreeBSD-EN-15:19.kqueue
156 Fix regression in ntpd(8) lacking support for RAWDCF reference
157 clock in 10.2-RELEASE-p6. [SA-15:25]
159 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
161 Fix applications exiting due to segmentation violation on a correct
162 memory address. [EN-15:20.vm]
164 20151026: p6 FreeBSD-SA-15:25.ntp
166 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
168 20151002: p5 FreeBSD-SA-15:24.rpcbind [revised]
169 Revised patch to address a regression that prevents NIS from working.
171 20150929: p4 FreeBSD-SA-15:24.rpcbind
173 Fix rpcbind(8) remote denial of service. [SA-15:24]
175 20150916: p3 FreeBSD-EN-15:16.pw
176 FreeBSD-EN-15:17.libc
179 Fix regression in pw(8) when creating numeric users or groups.
182 Fix libc handling of signals for multi-threaded processes.
185 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
187 20150825: p2 FreeBSD-SA-15:22.openssh
189 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
191 Fix insufficient check of unsupported pkg(7) signature methods.
194 20150818: p1 FreeBSD-SA-15:20.expat
195 FreeBSD-EN-15:11.toolchain
196 FreeBSD-EN-15:12.netstat
197 FreeBSD-EN-15:13.vidcontrol
199 Fix multiple integer overflows in expat (libbsdxml) XML parser.
202 Fix make(1) syntax errors when upgrading from 9.x and earlier.
205 Fix incorrect netstat(1) data handling on 32-bit systems.
208 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13]
214 The default Unbound configuration now enables remote control
215 using a local socket. Users who have already enabled the
216 local_unbound service should regenerate their configuration
217 by running "service local_unbound setup" as root.
220 An additional fix for the issue described in the 20150614 sendmail
221 entry below has been been committed in revision 284786.
224 The fix for the issue described in the 20150614 sendmail entry
225 below has been been committed in revision 284485. The work
226 around described in that entry is no longer needed unless the
227 default setting is overridden by a confDH_PARAMETERS configuration
228 setting of '5' or pointing to a 512 bit DH parameter file.
231 The import of openssl to address the FreeBSD-SA-15:10.openssl
232 security advisory includes a change which rejects handshakes
233 with DH parameters below 768 bits. sendmail releases prior
234 to 8.15.2 (not yet released), defaulted to a 512 bit
235 DH parameter setting for client connections. To work around
236 this interoperability, sendmail can be configured to use a
237 2048 bit DH parameter by:
239 1. Edit /etc/mail/`hostname`.mc
240 2. If a setting for confDH_PARAMETERS does not exist or
241 exists and is set to a string beginning with '5',
243 3. If a setting for confDH_PARAMETERS exists and is set to
244 a file path, create a new file with:
245 openssl dhparam -out /path/to/file 2048
246 4. Rebuild the .cf file:
247 cd /etc/mail/; make; make install
249 cd /etc/mail/; make restart
251 A sendmail patch is coming, at which time this file will be
255 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
256 defined in symlink(7); previously symlinks were silently ignored.
259 The const qualifier has been removed from iconv(3) to comply with
260 POSIX. The ports tree is aware of this from r384038 onwards.
263 At svn r275807, The default linux compat kernel ABI has been adjusted
264 to 2.6.18 in support of the linux-c6 compat ports infrastructure
265 update. If you wish to continue using the linux-f10 compat ports,
266 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
267 encouraged to update their linux-compat packages to linux-c6 during
268 their next update cycle.
270 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports.
273 pjdfstest has been integrated into kyua as an opt-in test suite.
274 Please see share/doc/pjdfstest/README for a more details on how to
281 The ofwfb driver, used to provide a graphics console on PowerPC when
282 using vt(4), no longer allows mmap() of all of physical memory. This
283 will prevent Xorg on PowerPC with some ATI graphics cards from
284 initializing properly unless x11-servers/xorg-server is updated to
288 The libatf-c and libatf-c++ major versions were downgraded to 0 and
289 1 respectively to match the upstream numbers. They were out of
290 sync because, when they were originally added to FreeBSD, the
291 upstream versions were not respected. These libraries are private
292 and not yet built by default, so renumbering them should be a
293 non-issue. However, unclean source trees will yield broken test
294 programs once the operator executes "make delete-old-libs" after a
297 Additionally, the atf-sh binary was made private by moving it into
298 /usr/libexec/. Already-built shell test programs will keep the
299 path to the old binary so they will break after "make delete-old"
302 If you are using WITH_TESTS=yes (not the default), wipe the object
303 tree and rebuild from scratch to prevent spurious test failures.
304 This is only needed once: the misnumbered libraries and misplaced
305 binaries have been added to OptionalObsoleteFiles.inc so they will
306 be removed during a clean upgrade.
309 The ixgbe tunables now match their sysctl counterparts, for example:
310 hw.ixgbe.enable_aim => hw.ix.enable_aim
311 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
314 The NFSv4.1 server committed by r269398 changes the internal
315 function call interfaces used between the NFS and krpc modules.
316 As such, __FreeBSD_version was bumped.
319 The default unbound configuration has been modified to address
320 issues with reverse lookups on networks that use private
321 address ranges. If you use the local_unbound service, run
322 "service local_unbound setup" as root to regenerate your
323 configuration, then "service local_unbound reload" to load the
327 It is no longer necessary to include the dwarf version in your DEBUG
328 options in your kernel config file. The bug that required it to be
329 placed in the config file has bene fixed. DEBUG should now just
330 contain -g. The build system will automatically update things
331 to do the right thing.
334 Several ABI breaking changes were merged to CTL and new iSCSI code.
335 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
336 iscsictl need to be rebuilt to work with a new kernel.
339 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
340 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
341 which differs from the behaviour controlled by this knob.)
344 On i386 and amd64 systems, the onifconsole flag is now set by default
345 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
346 as a login TTY if it is set in the bootloader as an active kernel
347 console. No changes in behavior should result otherwise. To revert to
348 the previous behavior, set ttyu0 to "off" in /etc/ttys.
351 Clang and llvm have been upgraded to 3.4.1 release.
354 Clang and llvm have been upgraded to 3.4 release.
357 If a Makefile in a tests/ directory was auto-generating a Kyuafile
358 instead of providing an explicit one, this would prevent such
359 Makefile from providing its own Kyuafile in the future during
360 NO_CLEAN builds. This has been fixed in the Makefiles but manual
361 intervention is needed to clean an objdir if you use NO_CLEAN:
362 # find /usr/obj -name Kyuafile | xargs rm -f
365 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
366 capability mode support. Please note that enabling the feature in
367 kernel is still highly recommended.
370 OpenSSH is now built with sandbox support, and will use sandbox as
371 the default privilege separation method. This requires Capsicum
372 capability mode support in kernel.
375 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
376 been deprecated and will not be part of FreeBSD 11.0 and later
377 releases. If you use this driver, please consider switching to
378 the nfe(4) driver instead.
384 The behavior of gss_pseudo_random() for the krb5 mechanism
385 has changed, for applications requesting a longer random string
386 than produced by the underlying enctype's pseudo-random() function.
387 In particular, the random string produced from a session key of
388 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
389 be different at the 17th octet and later, after this change.
390 The counter used in the PRF+ construction is now encoded as a
391 big-endian integer in accordance with RFC 4402.
392 __FreeBSD_version is bumped to 1000701.
395 The WITHOUT_ATF build knob has been removed and its functionality
396 has been subsumed into the more generic WITHOUT_TESTS. If you were
397 using the former to disable the build of the ATF libraries, you
398 should change your settings to use the latter.
401 The default version of mtree is nmtree which is obtained from
402 NetBSD. The output is generally the same, but may vary
403 slightly. If you found you need identical output adding
404 "-F freebsd9" to the command line should do the trick. For the
405 time being, the old mtree is available as fmtree.
408 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
409 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
410 1.1.4_8 and verify bsdyml not linked in, before running "make
412 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
414 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
417 The rc.d/jail script has been updated to support jail(8)
418 configuration file. The "jail_<jname>_*" rc.conf(5) variables
419 for per-jail configuration are automatically converted to
420 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
421 This is transparently backward compatible. See below about some
422 incompatibilities and rc.conf(5) manual page for more details.
424 These variables are now deprecated in favor of jail(8) configuration
425 file. One can use "rc.d/jail config <jname>" command to generate
426 a jail(8) configuration file in /var/run/jail.<jname>.conf without
427 running the jail(8) utility. The default pathname of the
428 configuration file is /etc/jail.conf and can be specified by
429 using $jail_conf or $jail_<jname>_conf variables.
431 Please note that jail_devfs_ruleset accepts an integer at
432 this moment. Please consider to rewrite the ruleset name
436 BIND has been removed from the base system. If all you need
437 is a local resolver, simply enable and start the local_unbound
438 service instead. Otherwise, several versions of BIND are
439 available in the ports tree. The dns/bind99 port is one example.
441 With this change, nslookup(1) and dig(1) are no longer in the base
442 system. Users should instead use host(1) and drill(1) which are
443 in the base system. Alternatively, nslookup and dig can
444 be obtained by installing the dns/bind-tools port.
447 With the addition of unbound(8), a new unbound user is now
448 required during installworld. "mergemaster -p" can be used to
449 add the user prior to installworld, as documented in the handbook.
452 OpenSSH is now built with DNSSEC support, and will by default
453 silently trust signed SSHFP records. This can be controlled with
454 the VerifyHostKeyDNS client configuration setting. DNSSEC support
455 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
458 The GNU Compiler Collection and C++ standard library (libstdc++)
459 are no longer built by default on platforms where clang is the system
460 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
464 The PROCDESC kernel option is now part of the GENERIC kernel
465 configuration and is required for the rwhod(8) to work.
466 If you are using custom kernel configuration, you should include
470 The API and ABI related to the Capsicum framework was modified
471 in backward incompatible way. The userland libraries and programs
472 have to be recompiled to work with the new kernel. This includes the
473 following libraries and programs, but the whole buildworld is
474 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
475 kdump, procstat, rwho, rwhod, uniq.
478 AES-NI intrinsic support has been added to gcc. The AES-NI module
479 has been updated to use this support. A new gcc is required to build
480 the aesni module on both i386 and amd64.
483 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
484 Thus "device padlock_rng" and "device rdrand_rng" should be
485 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
488 WITH_ICONV has been split into two feature sets. WITH_ICONV now
489 enables just the iconv* functionality and is now on by default.
490 WITH_LIBICONV_COMPAT enables the libiconv api and link time
491 compatability. Set WITHOUT_ICONV to build the old way.
492 If you have been using WITH_ICONV before, you will very likely
493 need to turn on WITH_LIBICONV_COMPAT.
496 INVARIANTS option now enables DEBUG for code with OpenSolaris and
497 Illumos origin, including ZFS. If you have INVARIANTS in your
498 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
500 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
501 locks if WITNESS option was set. Because that generated a lot of
502 witness(9) reports and all of them were believed to be false
503 positives, this is no longer done. New option OPENSOLARIS_WITNESS
504 can be used to achieve the previous behavior.
507 Timer values in IPv6 data structures now use time_uptime instead
508 of time_second. Although this is not a user-visible functional
509 change, userland utilities which directly use them---ndp(8),
510 rtadvd(8), and rtsold(8) in the base system---need to be updated
514 find -delete can now delete the pathnames given as arguments,
515 instead of only files found below them or if the pathname did
516 not contain any slashes. Formerly, the following error message
519 find: -delete: <path>: relative path potentially not safe
521 Deleting the pathnames given as arguments can be prevented
522 without error messages using -mindepth 1 or by changing
523 directory and passing "." as argument to find. This works in the
524 old as well as the new version of find.
527 Behavior of devfs rules path matching has been changed.
528 Pattern is now always matched against fully qualified devfs
529 path and slash characters must be explicitly matched by
530 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
531 subdirectories must be reviewed.
534 The default ARM ABI has changed to the ARM EABI. The old ABI is
535 incompatible with the ARM EABI and all programs and modules will
536 need to be rebuilt to work with a new kernel.
538 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
540 NOTE: Support for the old ABI will be removed in the future and
541 users are advised to upgrade.
544 pkg_install has been disconnected from the build if you really need it
545 you should add WITH_PKGTOOLS in your src.conf(5).
548 Most of network statistics structures were changed to be able
549 keep 64-bits counters. Thus all tools, that work with networking
550 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
553 Fix targets that run multiple make's to use && rather than ;
554 so that subsequent steps depend on success of previous.
556 NOTE: if building 'universe' with -j* on stable/8 or stable/9
557 it would be better to start the build using bmake, to avoid
558 overloading the machine.
561 Fix a bug that allowed a tracing process (e.g. gdb) to write
562 to a memory-mapped file in the traced process's address space
563 even if neither the traced process nor the tracing process had
564 write access to that file.
567 CVS has been removed from the base system. An exact copy
568 of the code is available from the devel/cvs port.
571 Some people report the following error after the switch to bmake:
573 make: illegal option -- J
574 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
576 *** [buildworld] Error code 2
578 this likely due to an old instance of make in
579 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
580 which src/Makefile will use that blindly, if it exists, so if
581 you see the above error:
583 rm -rf `make -V MAKEPATH`
588 Use bmake by default.
589 Whereas before one could choose to build with bmake via
590 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
591 make. The goal is to remove these knobs for 10-RELEASE.
593 It is worth noting that bmake (like gmake) treats the command
594 line as the unit of failure, rather than statements within the
595 command line. Thus '(cd some/where && dosomething)' is safer
596 than 'cd some/where; dosomething'. The '()' allows consistent
597 behavior in parallel build.
600 Fix a bug that allows NFS clients to issue READDIR on files.
603 The WITHOUT_IDEA option has been removed because
604 the IDEA patent expired.
607 The sysctl which controls TRIM support under ZFS has been renamed
608 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
612 The mergemaster command now uses the default MAKEOBJDIRPREFIX
613 rather than creating it's own in the temporary directory in
614 order allow access to bootstrapped versions of tools such as
615 install and mtree. When upgrading from version of FreeBSD where
616 the install command does not support -l, you will need to
617 install a new mergemaster command if mergemaster -p is required.
618 This can be accomplished with the command (cd src/usr.sbin/mergemaster
622 Legacy ATA stack, disabled and replaced by new CAM-based one since
623 FreeBSD 9.0, completely removed from the sources. Kernel modules
624 atadisk and atapi*, user-level tools atacontrol and burncd are
625 removed. Kernel option `options ATA_CAM` is now permanently enabled
629 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
630 and socketpair(2). Software, in particular Kerberos, may
631 automatically detect and use these during building. The resulting
632 binaries will not work on older kernels.
635 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
636 information, see the respective 20130304 entry).
639 Recent commits to callout(9) changed the size of struct callout,
640 so the KBI is probably heavily disturbed. Also, some functions
641 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
642 by macros. Every kernel module using it won't load, so rebuild
645 The ctl device has been re-enabled in GENERIC for i386 and amd64,
646 but does not initialize by default (because of the new CTL_DISABLE
647 option) to save memory. To re-enable it, remove the CTL_DISABLE
648 option from the kernel config file or set kern.cam.ctl.disable=0
649 in /boot/loader.conf.
652 The ctl device has been disabled in GENERIC for i386 and amd64.
653 This was done due to the extra memory being allocated at system
654 initialisation time by the ctl driver which was only used if
655 a CAM target device was created. This makes a FreeBSD system
656 unusable on 128MB or less of RAM.
659 A new compression method (lz4) has been merged to -HEAD. Please
660 refer to zpool-features(7) for more information.
662 Please refer to the "ZFS notes" section of this file for information
663 on upgrading boot ZFS pools.
666 A BSD-licensed patch(1) variant has been added and is installed
667 as bsdpatch, being the GNU version the default patch.
668 To inverse the logic and use the BSD-licensed one as default,
669 while having the GNU version installed as gnupatch, rebuild
670 and install world with the WITH_BSD_PATCH knob set.
673 Due to the use of the new -l option to install(1) during build
674 and install, you must take care not to directly set the INSTALL
675 make variable in your /etc/make.conf, /etc/src.conf, or on the
676 command line. If you wish to use the -C flag for all installs
677 you may be able to add INSTALL+=-C to /etc/make.conf or
681 The install(1) option -M has changed meaning and now takes an
682 argument that is a file or path to append logs to. In the
683 unlikely event that -M was the last option on the command line
684 and the command line contained at least two files and a target
685 directory the first file will have logs appended to it. The -M
686 option served little practical purpose in the last decade so its
687 use is expected to be extremely rare.
690 After switching to Clang as the default compiler some users of ZFS
691 on i386 systems started to experience stack overflow kernel panics.
692 Please consider using 'options KSTACK_PAGES=4' in such configurations.
695 GEOM_LABEL now mangles label names read from file system metadata.
696 Mangling affect labels containing spaces, non-printable characters,
697 '%' or '"'. Device names in /etc/fstab and other places may need to
701 By default, only the 10 most recent kernel dumps will be saved. To
702 restore the previous behaviour (no limit on the number of kernel dumps
703 stored in the dump directory) add the following line to /etc/rc.conf:
708 With the addition of auditdistd(8), a new auditdistd user is now
709 required during installworld. "mergemaster -p" can be used to
710 add the user prior to installworld, as documented in the handbook.
713 The sin6_scope_id member variable in struct sockaddr_in6 is now
714 filled by the kernel before passing the structure to the userland via
715 sysctl or routing socket. This means the KAME-specific embedded scope
716 id in sin6_addr.s6_addr[2] is always cleared in userland application.
717 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
718 __FreeBSD_version is bumped to 1000025.
721 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
722 This means that the world and kernel will be compiled with clang
723 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
724 and /usr/bin/cpp. To disable this behavior and revert to building
725 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
726 of current may need to bootstrap WITHOUT_CLANG first if the clang
727 build fails (its compatibility window doesn't extend to the 9 stable
731 The IPFIREWALL_FORWARD kernel option has been removed. Its
732 functionality now turned on by default.
735 The ZERO_COPY_SOCKET kernel option has been removed and
736 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
737 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
738 mechanism which is not safe and may result in kernel crashes.
739 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
740 driver supports disposeable external page sized mbuf storage.
741 Proper replacements for both zero-copy mechanisms are under
742 consideration and will eventually lead to complete removal
743 of the two kernel options.
746 The IPv4 network stack has been converted to network byte
747 order. The following modules need to be recompiled together
748 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
749 pf(4), ipfw(4), ng_ipfw(4), stf(4).
752 Support for non-MPSAFE filesystems was removed from VFS. The
753 VFS_VERSION was bumped, all filesystem modules shall be
757 All the non-MPSAFE filesystems have been disconnected from
758 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
759 portalfs, smbfs, xfs.
762 The interface cloning API and ABI has changed. The following
763 modules need to be recompiled together with kernel:
764 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
765 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
766 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
769 The sdhci driver was split in two parts: sdhci (generic SD Host
770 Controller logic) and sdhci_pci (actual hardware driver).
771 No kernel config modifications are required, but if you
772 load sdhc as a module you must switch to sdhci_pci instead.
775 Import the FUSE kernel and userland support into base system.
778 The GNU sort(1) program has been removed since the BSD-licensed
779 sort(1) has been the default for quite some time and no serious
780 problems have been reported. The corresponding WITH_GNU_SORT
784 The pfil(9) API/ABI for AF_INET family has been changed. Packet
785 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
789 The net80211(4) ABI has been changed to allow for improved driver
790 PS-POLL and power-save support. All wireless drivers need to be
791 recompiled to work with the new kernel.
794 The random(4) support for the VIA hardware random number
795 generator (`PADLOCK') is no longer enabled unconditionally.
796 Add the padlock_rng device in the custom kernel config if
797 needed. The GENERIC kernels on i386 and amd64 do include the
798 device, so the change only affects the custom kernel
802 The pf(4) packet filter ABI has been changed. pfctl(8) and
803 snmp_pf module need to be recompiled to work with new kernel.
806 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
807 to -HEAD. Pools that have empty_bpobj in active state can not be
808 imported read-write with ZFS implementations that do not support
809 this feature. For more information read the zpool-features(5)
813 The sparc64 ZFS loader has been changed to no longer try to auto-
814 detect ZFS providers based on diskN aliases but now requires these
815 to be explicitly listed in the OFW boot-device environment variable.
818 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
819 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
820 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
823 The following sysctls and tunables have been renamed for consistency
824 with other variables:
825 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
826 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
829 The sort utility has been replaced with BSD sort. For now, GNU sort
830 is also available as "gnusort" or the default can be set back to
831 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
832 installed as "bsdsort".
835 A new version of ZFS (pool version 5000) has been merged to -HEAD.
836 Starting with this version the old system of ZFS pool versioning
837 is superseded by "feature flags". This concept enables forward
838 compatibility against certain future changes in functionality of ZFS
839 pools. The first read-only compatible "feature flag" for ZFS pools
840 is named "com.delphix:async_destroy". For more information
841 read the new zpool-features(5) manual page.
842 Please refer to the "ZFS notes" section of this file for information
843 on upgrading boot ZFS pools.
846 The malloc(3) implementation embedded in libc now uses sources imported
847 as contrib/jemalloc. The most disruptive API change is to
848 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
849 delete it prior to installworld, and optionally re-create it using the
850 new format after rebooting. See malloc.conf(5) for details
851 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
855 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
856 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
857 now spelled mips. This is to aid compatibility with third-party
858 software that expects this naming scheme in uname(3). Little-endian
859 settings are unchanged. If you are updating a big-endian mips64 machine
860 from before this change, you may need to set MACHINE_ARCH=mips64 in
861 your environment before the new build system will recognize your machine.
864 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
868 Now unix domain sockets behave "as expected" on nullfs(5). Previously
869 nullfs(5) did not pass through all behaviours to the underlying layer,
870 as a result if we bound to a socket on the lower layer we could connect
871 only to the lower path; if we bound to the upper layer we could connect
872 only to the upper path. The new behavior is one can connect to both the
873 lower and the upper paths regardless what layer path one binds to.
876 The getifaddrs upgrade path broken with 20111215 has been restored.
877 If you have upgraded in between 20111215 and 20120209 you need to
878 recompile libc again with your kernel. You still need to recompile
879 world to be able to configure CARP but this restriction already
883 The set_rcvar() function has been removed from /etc/rc.subr. All
884 base and ports rc.d scripts have been updated, so if you have a
885 port installed with a script in /usr/local/etc/rc.d you can either
886 hand-edit the rcvar= line, or reinstall the port.
888 An easy way to handle the mass-update of /etc/rc.d:
889 rm /etc/rc.d/* && mergemaster -i
892 panic(9) now stops other CPUs in the SMP systems, disables interrupts
893 on the current CPU and prevents other threads from running.
894 This behavior can be reverted using the kern.stop_scheduler_on_panic
896 The new behavior can be incompatible with kern.sync_on_panic.
899 The carp(4) facility has been changed significantly. Configuration
900 of the CARP protocol via ifconfig(8) has changed, as well as format
901 of CARP events submitted to devd(8) has changed. See manual pages
902 for more information. The arpbalance feature of carp(4) is currently
903 not supported anymore.
905 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
906 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
907 need to be recompiled.
910 The acpi_wmi(4) status device /dev/wmistat has been renamed to
914 The option VFS_ALLOW_NONMPSAFE option has been added in order to
915 explicitely support non-MPSAFE filesystems.
916 It is on by default for all supported platform at this present
920 The broken amd(4) driver has been replaced with esp(4) in the amd64,
921 i386 and pc98 GENERIC kernel configuration files.
924 sysinstall has been removed
927 The stable/9 branch created in subversion. This corresponds to the
928 RELENG_9 branch in CVS.
931 This commit modifies vfs_register() so that it uses a hash
932 calculation to set vfc_typenum, which is enabled by default.
933 The first time a system is booted after this change, the
934 vfc_typenum values will change for all file systems. The
935 main effect of this is a change to the NFS server file handles
936 for file systems that use vfc_typenum in their fsid, such as ZFS.
937 It will, however, prevent vfc_typenum from changing when file
938 systems are loaded in a different order for subsequent reboots.
939 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
940 until you are ready to remount all NFS clients after a reboot.
943 Bump the shared library version numbers for libraries that
944 do not use symbol versioning, have changed the ABI compared
945 to stable/8 and which shared library version was not bumped.
946 Done as part of 9.0-RELEASE cycle.
949 During the merge of Capsicum features, the fget(9) KPI was modified.
950 This may require the rebuilding of out-of-tree device drivers --
951 issues have been reported specifically with the nVidia device driver.
952 __FreeBSD_version is bumped to 900041.
954 Also, there is a period between 20110811 and 20110814 where the
955 special devices /dev/{stdin,stdout,stderr} did not work correctly.
956 Building world from a kernel during that window may not work.
959 The packet filter (pf) code has been updated to OpenBSD 4.5.
960 You need to update userland tools to be in sync with kernel.
961 This update breaks backward compatibility with earlier pfsync(4)
962 versions. Care must be taken when updating redundant firewall setups.
965 The following sysctls and tunables are retired on x86 platforms:
967 machdep.hlt_logical_cpus
968 The following sysctl is retired:
969 machdep.hyperthreading_allowed
970 The sysctls were supposed to provide a way to dynamically offline and
971 online selected CPUs on x86 platforms, but the implementation has not
972 been reliable especially with SCHED_ULE scheduler.
973 machdep.hyperthreading_allowed tunable is still available to ignore
974 hyperthreading CPUs at OS level.
975 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
976 where X is an APIC ID of a CPU. Be advised, though, that disabling
977 CPUs in non-uniform fashion will result in non-uniform topology and
978 may lead to sub-optimal system performance with SCHED_ULE, which is
982 cpumask_t type is retired and cpuset_t is used in order to describe
986 Changes to ifconfig(8) for dynamic address family detection mandate
987 that you are running a kernel of 20110525 or later. Make sure to
988 follow the update procedure to boot a new kernel before installing
992 Support for sun4v architecture is officially dropped
995 Several KPI breaking changes have been committed to the mii(4) layer,
996 the PHY drivers and consequently some Ethernet drivers using mii(4).
997 This means that miibus.ko and the modules of the affected Ethernet
998 drivers need to be recompiled.
1000 Note to kernel developers: Given that the OUI bit reversion problem
1001 was fixed as part of these changes all mii(4) commits related to OUIs,
1002 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
1003 handling, no longer can be merged verbatim to stable/8 and previous
1007 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
1008 into their kernel configurations along with 'device pci'.
1011 The default NFS client is now the new NFS client, so fstype "newnfs"
1012 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
1013 Although mounts via fstype "nfs" will usually work without userland
1014 changes, it is recommended that the mount(8) and mount_nfs(8)
1015 commands be rebuilt from sources and that a link to mount_nfs called
1016 mount_oldnfs be created. The new client is compiled into the
1017 kernel with "options NFSCL" and this is needed for diskless root
1018 file systems. The GENERIC kernel configs have been changed to use
1019 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
1020 To use the regular/old client, you can "mount -t oldnfs ...". For
1021 a diskless root file system, you must also include a line like:
1023 vfs.root.mountfrom="oldnfs:"
1025 in the boot/loader.conf on the root fs on the NFS server to make
1026 a diskless root fs use the old client.
1029 The GENERIC kernels for all architectures now default to the new
1030 CAM-based ATA stack. It means that all legacy ATA drivers were
1031 removed and replaced by respective CAM drivers. If you are using
1032 ATA device names in /etc/fstab or other places, make sure to update
1033 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
1034 where 'Y's are the sequential numbers starting from zero for each type
1035 in order of detection, unless configured otherwise with tunables,
1036 see cam(4)). There will be symbolic links created in /dev/ to map
1037 old adX devices to the respective adaY. They should provide basic
1038 compatibility for file systems mounting in most cases, but they do
1039 not support old user-level APIs and do not have respective providers
1040 in GEOM. Consider using updated management tools with new device names.
1042 It is possible to load devices ahci, ata, siis and mvs as modules,
1043 but option ATA_CAM should remain in kernel configuration to make ata
1044 module work as CAM driver supporting legacy ATA controllers. Device ata
1045 still can be used in modular fashion (atacore + ...). Modules atadisk
1046 and atapi* are not used and won't affect operation in ATA_CAM mode.
1047 Note that to use CAM-based ATA kernel should include CAM devices
1048 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1049 them are parts of the cam module.
1051 ataraid(4) functionality is now supported by the RAID GEOM class.
1052 To use it you can load geom_raid kernel module and use graid(8) tool
1053 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1055 No kernel config options or code have been removed, so if a problem
1056 arises, please report it and optionally revert to the old ATA stack.
1057 In order to do it you can remove from the kernel config:
1062 , and instead add back:
1063 device atadisk # ATA disk drives
1064 device ataraid # ATA RAID drives
1065 device atapicd # ATAPI CDROM drives
1066 device atapifd # ATAPI floppy drives
1067 device atapist # ATAPI tape drives
1070 The default NFS server has been changed to the new server, which
1071 was referred to as the experimental server. If you need to switch
1072 back to the old NFS server, you must now put the "-o" option on
1073 both the mountd and nfsd commands. This can be done using the
1074 mountd_flags and nfs_server_flags rc.conf variables until an
1075 update to the rc scripts is committed, which is coming soon.
1078 The GNU Objective-C runtime library (libobjc), and other Objective-C
1079 related components have been removed from the base system. If you
1080 require an Objective-C library, please use one of the available ports.
1083 ath(4) has been split into bus- and device- modules. if_ath contains
1084 the HAL, the TX rate control and the network device code. if_ath_pci
1085 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1086 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1087 in order to use ath on everything else.
1089 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1090 need to load if_ath and if_ath_pci for ath(4) operation.
1093 As part of the replacement of sysinstall, the process of building
1094 release media has changed significantly. For details, please re-read
1095 release(7), which has been updated to reflect the new build process.
1098 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1099 is the last available version under GPLv2. It brings a number of new
1100 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1101 4.1 and SSE 4.2), better support for powerpc64, a number of new
1102 directives, and lots of other small improvements. See the ChangeLog
1103 file in contrib/binutils for the full details.
1106 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1107 compliant, and will now use half of hash for authentication.
1108 This will break interoperability with all stacks (including all
1109 actual FreeBSD versions) who implement
1110 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1112 The only workaround with such peers is to use another HMAC
1113 algorithm for IPsec ("phase 2") authentication.
1116 Remove the uio_yield prototype and symbol. This function has
1117 been misnamed since it was introduced and should not be
1118 globally exposed with this name. The equivalent functionality
1119 is now available using kern_yield(curthread->td_user_pri).
1120 The function remains undocumented.
1123 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1124 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1125 for scalar sysctls is defined but disabled. Code that needs
1126 UQUAD to pass the type checking that must compile on older
1127 systems where the define is not present can check against
1128 __FreeBSD_version >= 900030.
1130 The system dialog(1) has been replaced with a new version previously
1131 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1132 with the previous version, but the libdialog associated with it has
1133 a largely incompatible API. As such, the original version of libdialog
1134 will be kept temporarily as libodialog, until its base system consumers
1135 are replaced or updated. Bump __FreeBSD_version to 900030.
1138 If you are trying to run make universe on a -stable system, and you get
1139 the following warning:
1140 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1141 unknown. config(8) likely too old."
1142 or something similar to it, then you must upgrade your -stable system
1143 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1144 stable/8) or build the config from the latest stable/8 branch and
1145 install it on your system.
1147 Prior to this date, building a current universe on 8-stable system from
1148 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1149 error in the first kernel build phase. A new config on those old
1150 systems will fix that problem for older versions of -current.
1153 The TCP stack has been modified to allow Khelp modules to interact with
1154 it via helper hook points and store per-connection data in the TCP
1155 control block. Bump __FreeBSD_version to 900029. User space tools that
1156 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1160 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1161 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1162 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1163 to take advantage of it instead of using custom implementations. This
1164 means that these drivers now no longer unconditionally advertise
1165 support for flow control but only do so if flow control is a selected
1166 media option. This was implemented in the generic support that way in
1167 order to allow flow control to be switched on and off via ifconfig(8)
1168 with the PHY specific default to typically off in order to protect
1169 from unwanted effects. Consequently, if you used flow control with
1170 one of the above mentioned drivers you now need to explicitly enable
1171 it, for example via:
1172 ifconfig bge0 media auto mediaopt flowcontrol
1174 Along with the above mentioned changes generic support for setting
1175 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1176 e1000phy(4) as well as ip1000phy(4) have been converted to take
1177 advantage of it. This means that these drivers now no longer take the
1178 link0 parameter for selecting master mode but the master media option
1179 has to be used instead, for example like in the following:
1180 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1182 Selection of master mode now is also available with all other PHY
1183 drivers supporting 1000baseT.
1186 The TCP stack has received a significant update to add support for
1187 modularised congestion control and generally improve the clarity of
1188 congestion control decisions. Bump __FreeBSD_version to 900025. User
1189 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1190 sockstat) need to be recompiled.
1193 The man(1) utility has been replaced by a new version that no longer
1194 uses /etc/manpath.config. Please consult man.conf(5) for how to
1195 migrate local entries to the new format.
1198 The copyright strings printed by login(1) and sshd(8) at the time of a
1199 new connection have been removed to follow other operating systems and
1203 A workaround for a fixed ld bug has been removed in kernel code,
1204 so make sure that your system ld is built from sources after
1205 revision 210245 from 2010-07-19 (r211583 if building head kernel
1206 on stable/8, r211584 for stable/7; both from 2010-08-21).
1207 A symptom of incorrect ld version is different addresses for
1208 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1211 The $ipv6_prefer variable in rc.conf(5) has been split into
1212 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1214 The $ip6addrctl_policy is a variable to choose a pre-defined
1215 address selection policy set by ip6addrctl(8). A value
1216 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1219 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1220 flag (see an entry of 20090926) is set on an interface with no
1221 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1222 security reason. If you want IPv6 link-local address on all
1223 interfaces by default, set this to "YES".
1225 The old ipv6_prefer="YES" is equivalent to
1226 ipv6_activate_all_interfaces="YES" and
1227 ip6addrctl_policy="ipv6_prefer".
1230 DTrace has grown support for userland tracing. Due to this, DTrace is
1231 now i386 and amd64 only.
1232 dtruss(1) is now installed by default on those systems and a new
1233 kernel module is needed for userland tracing: fasttrap.
1234 No changes to your kernel config file are necessary to enable
1235 userland tracing, but you might consider adding 'STRIP=' and
1236 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1237 to have informative userland stack traces in DTrace (ustack).
1240 The acpi_aiboost(4) driver has been removed in favor of the new
1241 aibs(4) driver. You should update your kernel configuration file.
1244 BSD grep has been imported to the base system and it is built by
1245 default. It is completely BSD licensed, highly GNU-compatible, uses
1246 less memory than its GNU counterpart and has a small codebase.
1247 However, it is slower than its GNU counterpart, which is mostly
1248 noticeable for larger searches, for smaller ones it is measurable
1249 but not significant. The reason is complex, the most important factor
1250 is that we lack a modern and efficient regex library and GNU
1251 overcomes this by optimizing the searches internally. Future work
1252 on improving the regex performance is planned, for the meantime,
1253 users that need better performance, can build GNU grep instead by
1254 setting the WITH_GNU_GREP knob.
1257 Due to the import of powerpc64 support, all existing powerpc kernel
1258 configuration files must be updated with a machine directive like this:
1259 machine powerpc powerpc
1261 In addition, an updated config(8) is required to build powerpc kernels
1265 A new version of ZFS (version 15) has been merged to -HEAD.
1266 This version uses a python library for the following subcommands:
1267 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1268 For full functionality of these commands the following port must
1269 be installed: sysutils/py-zfs
1272 'vm_page's are now hashed by physical address to an array of mutexes.
1273 Currently this is only used to serialize access to hold_count. Over
1274 time the page queue mutex will be peeled away. This changes the size
1275 of pmap on every architecture. And requires all callers of vm_page_hold
1276 and vm_page_unhold to be updated.
1279 WITH_CTF can now be specified in src.conf (not recommended, there
1280 are some problems with static executables), make.conf (would also
1281 affect ports which do not use GNU make and do not override the
1282 compile targets) or in the kernel config (via "makeoptions
1284 When WITH_CTF was specified there before this was silently ignored,
1285 so make sure that WITH_CTF is not used in places which could lead
1286 to unwanted behavior.
1289 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1290 to allow 32-bit compatibility on non-x86 platforms. All kernel
1291 configurations on amd64 and ia64 platforms using these options must
1292 be modified accordingly.
1295 The utmp user accounting database has been replaced with utmpx,
1296 the user accounting interface standardized by POSIX.
1297 Unfortunately the semantics of utmp and utmpx don't match,
1298 making it practically impossible to support both interfaces.
1299 The user accounting database is used by tools like finger(1),
1300 last(1), talk(1), w(1) and ac(8).
1302 All applications in the base system use utmpx. This means only
1303 local binaries (e.g. from the ports tree) may still use these
1304 utmp database files. These applications must be rebuilt to make
1307 After the system has been upgraded, it is safe to remove the old
1308 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1309 assuming their contents is of no importance anymore. Old wtmp
1310 databases can only be used by last(1) and ac(8) after they have
1311 been converted to the new format using wtmpcvt(1).
1314 Introduce the kernel thread "deadlock resolver" (which can be enabled
1315 via the DEADLKRES option, see NOTES for more details) and the
1316 sleepq_type() function for sleepqueues.
1319 The rc.firewall and rc.firewall6 were unified, and
1320 rc.firewall6 and rc.d/ip6fw were removed.
1321 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1322 variables are obsoleted. Instead, the following new rc
1323 variables are added to rc.d/ipfw:
1325 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1326 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1327 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1329 The meanings correspond to the relevant IPv4 variables.
1335 The default terminal emulation for syscons(4) has been changed
1336 from cons25 to xterm on all platforms except pc98. This means
1337 that the /etc/ttys file needs to be updated to ensure correct
1338 operation of applications on the console.
1340 The terminal emulation style can be toggled per window by using
1341 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1342 options can be used to change the compile-time default back to
1345 To prevent graphical artifacts, make sure the TERM environment
1346 variable is set to match the terminal emulation that is being
1347 performed by syscons(4).
1350 The layout of the structure ieee80211req_scan_result has changed.
1351 Applications that require wireless scan results (e.g. ifconfig(8))
1352 from net80211 need to be recompiled.
1354 Applications such as wpa_supplicant(8) may require a full world
1355 build without using NO_CLEAN in order to get synchronized with the
1359 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1360 There's one kernel module for each firmware. Adding "device iwnfw"
1361 to the kernel configuration file means including all three firmware
1362 images inside the kernel. If you want to include just the one for
1363 your wireless card, use the devices iwn4965fw, iwn5000fw or
1367 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1368 into rc.d/netif. The changes are the following:
1370 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1371 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1372 Note that both variables need the "inet6" keyword at the head.
1374 Do not set $ipv6_network_interfaces manually if you do not
1375 understand what you are doing. It is not needed in most cases.
1377 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1380 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1381 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1383 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1384 all configured interfaces have "inet6 accept_rtadv" in the
1385 $ifconfig_IF_ipv6. These are for backward compatibility.
1387 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1388 functionality of interfaces with no corresponding
1389 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1390 and the default address selection policy of ip6addrctl(8)
1391 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1392 Note that if you want to configure IPv6 functionality on the
1393 disabled interfaces after boot, first you need to clear the flag by
1394 using ifconfig(8) like:
1396 ifconfig em0 inet6 -ifdisabled
1398 If YES, the default address selection policy is set as
1401 The default value of $ipv6_prefer is NO.
1403 4. If your system need to receive Router Advertisement messages,
1404 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1405 scripts automatically invoke rtsol(8) when the interface becomes
1406 UP. The Router Advertisement messages are used for SLAAC
1407 (State-Less Address AutoConfiguration).
1410 802.11s D3.03 support was committed. This is incompatible with the
1411 previous code, which was based on D3.0.
1414 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1415 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1416 control whether accepting Router Advertisement messages or not.
1417 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1418 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1419 The ifconfig(8) utility now supports these flags.
1422 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1423 mount(8) and -a option for df(1) to see them.
1426 The old tunable hw.bus.devctl_disable has been superseded by
1427 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1428 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1432 Remove the option STOP_NMI. The default action is now to use NMI only
1433 for KDB via the newly introduced function stop_cpus_hard() and
1434 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1437 The stable/8 branch created in subversion. This corresponds to the
1438 RELENG_8 branch in CVS.
1441 Bump the shared library version numbers for all libraries that do not
1442 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1443 __FreeBSD_version to 800105.
1446 Due to changes in the implementation of virtual network stack support,
1447 all network-related kernel modules must be recompiled. As this change
1448 breaks the ABI, bump __FreeBSD_version to 800104.
1451 The TOE interface to the TCP syncache has been modified to remove
1452 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1453 The cxgb driver is the only TOE consumer affected by this change, and
1454 needs to be recompiled along with the kernel. As this change breaks
1455 the ABI, bump __FreeBSD_version to 800103.
1458 Padding has been added to struct tcpcb, sackhint and tcpstat in
1459 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1460 maintaining the ABI. However, this change breaks the ABI, so bump
1461 __FreeBSD_version to 800102. User space tools that rely on the size of
1462 any of these structs (e.g. sockstat) need to be recompiled.
1465 The NFS_LEGACYRPC option has been removed along with the old kernel
1466 RPC implementation that this option selected. Kernel configurations
1467 may need to be adjusted.
1470 The network interface device nodes at /dev/net/<interface> have been
1471 removed. All ioctl operations can be performed the normal way using
1472 routing sockets. The kqueue functionality can generally be replaced
1473 with routing sockets.
1476 The documentation from the FreeBSD Documentation Project (Handbook,
1477 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1478 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1481 The ABI of various structures related to the SYSV IPC API have been
1482 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1483 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1487 Layout of struct vnet has changed as routing related variables were
1488 moved to their own Vimage module. Modules need to be recompiled. Bump
1489 __FreeBSD_version to 800099.
1492 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1493 respectively. As long as no more than 16 groups per process are used,
1494 no changes should be visible. When more than 16 groups are used, old
1495 binaries may fail if they call getgroups() or getgrouplist() with
1496 statically sized storage. Recompiling will work around this, but
1497 applications should be modified to use dynamically allocated storage
1498 for group arrays as POSIX.1-2008 does not cap an implementation's
1499 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1501 NFS and portalfs mounts may also be affected as the list of groups is
1502 truncated to 16. Users of NFS who use more than 16 groups, should
1503 take care that negative group permissions are not used on the exported
1504 file systems as they will not be reliable unless a GSSAPI based
1505 authentication method is used.
1508 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1509 option compiles in the support for adaptive spinning for lockmgrs
1510 which want to enable it. The lockinit() function now accepts the flag
1511 LK_ADAPTIVE in order to make the lock object subject to adaptive
1512 spinning when both held in write and read mode.
1515 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1516 changed. User applications that use this ioctl need to be rebuilt.
1519 The layout of struct thread has changed. Kernel and modules need to
1523 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1524 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1527 window(1) has been removed from the base system. It can now be
1528 installed from ports. The port is called misc/window.
1531 The way we are storing and accessing `routing table' entries has
1532 changed. Programs reading the FIB, like netstat, need to be
1536 A new netisr implementation has been added for FreeBSD 8. Network
1537 file system modules, such as igmp, ipdivert, and others, should be
1539 Bump __FreeBSD_version to 800096.
1542 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1546 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1547 Bump __FreeBSD_version to 800094.
1550 Add mnt_xflag field to 'struct mount'. File system modules need to be
1552 Bump __FreeBSD_version to 800093.
1555 The compiling option ADAPTIVE_SX has been retired while it has been
1556 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1557 The KPI for sx_init_flags() changes as accepting flags:
1558 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1559 been introduced in order to handle the reversed logic.
1560 Bump __FreeBSD_version to 800092.
1563 Add support for hierarchical jails. Remove global securelevel.
1564 Bump __FreeBSD_version to 800091.
1567 The layout of struct vnet_net has changed, therefore modules
1569 Bump __FreeBSD_version to 800090.
1572 The newly imported zic(8) produces a new format in the output. Please
1573 run tzsetup(8) to install the newly created data to /etc/localtime.
1576 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1577 hw.usb.* and is now consistent again with previous releases.
1580 802.11 monitor mode support was revised and driver api's were changed.
1581 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1582 of DLT_IEEE802_11. No user-visible data structures were changed but
1583 applications that use DLT_IEEE802_11 may require changes.
1584 Bump __FreeBSD_version to 800088.
1587 The layout of the following structs has changed: sysctl_oid,
1588 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1589 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1590 panics may be experienced. World rebuild is required for
1591 correctly checking networking state from userland.
1592 Bump __FreeBSD_version to 800085.
1595 MLDv2 and Source-Specific Multicast (SSM) have been merged
1596 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1597 The implementation of SSM within FreeBSD's IPv6 stack closely
1598 follows the IPv4 implementation.
1600 For kernel developers:
1602 * The most important changes are that the ip6_output() and
1603 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1604 and this lock has been downgraded to a non-recursive mutex.
1606 * As with the changes to the IPv4 stack to support SSM, filtering
1607 of inbound multicast traffic must now be performed by transport
1608 protocols within the IPv6 stack. This does not apply to TCP and
1609 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1611 * The KPIs used by IPv6 multicast are similar to those used by
1612 the IPv4 stack, with the following differences:
1613 * im6o_mc_filter() is analogous to imo_multicast_filter().
1614 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1615 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1616 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1617 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1618 for MLDv1 have an additional 'timer' argument which is used to
1619 jitter the initial membership report for the solicited-node
1620 multicast membership on-link.
1621 * This is not strictly needed for MLDv2, which already jitters
1622 its report transmissions. However, the 'timer' argument is
1623 preserved in case MLDv1 is active on the interface.
1625 * The KAME linked-list based IPv6 membership implementation has
1626 been refactored to use a vector similar to that used by the IPv4
1628 Code which maintains a list of its own multicast memberships
1629 internally, e.g. carp, has been updated to reflect the new
1632 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1633 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1634 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1635 implementation constraint which needs to be addressed in HEAD.
1637 For application developers:
1639 * The changes are broadly similar to those made for the IPv4
1642 * The use of IPv4 and IPv6 multicast socket options on the same
1643 socket, using mapped addresses, HAS NOT been tested or supported.
1645 * There are a number of issues with the implementation of various
1646 IPv6 multicast APIs which need to be resolved in the API surface
1647 before the implementation is fully compatible with KAME userland
1648 use, and these are mostly to do with interface index treatment.
1650 * The literature available discusses the use of either the delta / ASM
1651 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1652 using setsourcefilter(3)/getsourcefilter(3). For more information
1653 please refer to RFC 3768, 'Socket Interface Extensions for
1654 Multicast Source Filters'.
1656 * Applications which use the published RFC 3678 APIs should be fine.
1658 For systems administrators:
1660 * The mtest(8) utility has been refactored to support IPv6, in
1661 addition to IPv4. Interface addresses are no longer accepted
1662 as arguments, their names must be used instead. The utility
1663 will map the interface name to its first IPv4 address as
1664 returned by getifaddrs(3).
1666 * The ifmcstat(8) utility has also been updated to print the MLDv2
1667 endpoint state and source filter lists via sysctl(3).
1669 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1670 loopback of IPv6 multicast datagrams by default; it defaults to 1
1671 to preserve the existing behaviour. Disabling multicast loopback is
1672 recommended for optimal system performance.
1674 * The IPv6 MROUTING code has been changed to examine this sysctl
1675 instead of attempting to perform a group lookup before looping
1676 back forwarded datagrams.
1678 Bump __FreeBSD_version to 800084.
1681 Implement low-level Bluetooth HCI API.
1682 Bump __FreeBSD_version to 800083.
1685 The layout of struct malloc_type, used by modules to register new
1686 memory allocation types, has changed. Most modules will need to
1687 be rebuilt or panics may be experienced.
1688 Bump __FreeBSD_version to 800081.
1691 Anticipate overflowing inp_flags - add inp_flags2.
1692 This changes most offsets in inpcb, so checking v4 connection
1693 state will require a world rebuild.
1694 Bump __FreeBSD_version to 800080.
1697 Add an llentry to struct route and struct route_in6. Modules
1698 embedding a struct route will need to be recompiled.
1699 Bump __FreeBSD_version to 800079.
1702 The size of rt_metrics_lite and by extension rtentry has changed.
1703 Networking administration apps will need to be recompiled.
1704 The route command now supports show as an alias for get, weighting
1705 of routes, sticky and nostick flags to alter the behavior of stateful
1707 Bump __FreeBSD_version to 800078.
1710 Do not use Giant for kbdmux(4) locking. This is wrong and
1711 apparently causing more problems than it solves. This will
1712 re-open the issue where interrupt handlers may race with
1713 kbdmux(4) in polling mode. Typical symptoms include (but
1714 not limited to) duplicated and/or missing characters when
1715 low level console functions (such as gets) are used while
1716 interrupts are enabled (for example geli password prompt,
1717 mountroot prompt etc.). Disabling kbdmux(4) may help.
1720 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1721 kernel modules referencing any of the above need to be recompiled.
1722 Bump __FreeBSD_version to 800075.
1725 GEOM_PART has become the default partition slicer for storage devices,
1726 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1727 introduces some changes:
1729 MSDOS/EBR: the devices created from MSDOS extended partition entries
1730 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1731 to devices with offset-based names. fstabs may need to be modified.
1733 BSD: the "geometry does not match label" warning is harmless in most
1734 cases but it points to problems in file system misalignment with
1735 disk geometry. The "c" partition is now implicit, covers the whole
1736 top-level drive and cannot be (mis)used by users.
1738 General: Kernel dumps are now not allowed to be written to devices
1739 whose partition types indicate they are meant to be used for file
1740 systems (or, in case of MSDOS partitions, as something else than
1743 Most of these changes date approximately from 200812.
1746 The uscanner(4) driver has been removed from the kernel. This follows
1747 Linux removing theirs in 2.6 and making libusb the default interface
1748 (supported by sane).
1751 The multicast forwarding code has been cleaned up. netstat(1)
1752 only relies on KVM now for printing bandwidth upcall meters.
1753 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1754 ip6_mroute_mod respectively. The config(5) options for statically
1755 compiling this code remain the same, i.e. 'options MROUTING'.
1758 Support for the IFF_NEEDSGIANT network interface flag has been
1759 removed, which means that non-MPSAFE network device drivers are no
1760 longer supported. In particular, if_ar, if_sr, and network device
1761 drivers from the old (legacy) USB stack can no longer be built or
1765 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1766 a bunch of new language catalog files have also been added.
1767 This means that some common libc messages are now localized and
1768 they depend on the LC_MESSAGES environmental variable.
1771 The k8temp(4) driver has been renamed to amdtemp(4) since
1772 support for Family 10 and Family 11 CPU families was added.
1775 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1776 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1778 For kernel developers, the most important changes are that the
1779 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1780 and this lock has been downgraded to a non-recursive mutex.
1782 Transport protocols (UDP, Raw IP) are now responsible for filtering
1783 inbound multicast traffic according to group membership and source
1784 filters. The imo_multicast_filter() KPI exists for this purpose.
1785 Transports which do not use multicast (SCTP, TCP) already reject
1786 multicast by default. Forwarding and receive performance may improve
1787 as a mutex acquisition is no longer needed in the ip_input()
1788 low-level input path. in_addmulti() and in_delmulti() are shimmed
1789 to new KPIs which exist to support SSM in-kernel.
1791 For application developers, it is recommended that loopback of
1792 multicast datagrams be disabled for best performance, as this
1793 will still cause the lock to be taken for each looped-back
1794 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1795 be tuned to 0 to disable loopback by default; it defaults to 1
1796 to preserve the existing behaviour.
1798 For systems administrators, to obtain best performance with
1799 multicast reception and multiple groups, it is always recommended
1800 that a card with a suitably precise hash filter is used. Hash
1801 collisions will still result in the lock being taken within the
1802 transport protocol input path to check group membership.
1804 If deploying FreeBSD in an environment with IGMP snooping switches,
1805 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1806 enabled; this forces 224.0.0.0/24 group membership to be announced
1809 The size of 'struct igmpstat' has changed; netstat needs to be
1810 recompiled to reflect this.
1811 Bump __FreeBSD_version to 800070.
1814 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1815 updated to use it. This requires a buildworld/installworld in order to
1816 update the library and dependencies (usbconfig, etc). Its advisable to
1817 rebuild all ports which uses libusb. More specific directions are given
1818 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1819 libusb are no longer required and can be removed.
1822 A workaround is committed to allow the creation of System V shared
1823 memory segment of size > 2 GB on the 64-bit architectures.
1824 Due to a limitation of the existing ABI, the shm_segsz member
1825 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1826 wrong for large segments. Note that limits must be explicitly
1827 raised to allow such segments to be created.
1830 The layout of struct ifnet has changed, requiring a rebuild of all
1831 network device driver modules.
1834 The /dev handling for the new USB stack has changed, a
1835 buildworld/installworld is required for libusb20.
1838 The new USB2 stack has now been permanently moved in and all kernel and
1839 module names reverted to their previous values (eg, usb, ehci, ohci,
1840 ums, ...). The old usb stack can be compiled in by prefixing the name
1841 with the letter 'o', the old usb modules have been removed.
1842 Updating entry 20090216 for xorg and 20090215 for libmap may still
1846 The rc.conf(5) option if_up_delay has been renamed to
1847 defaultroute_delay to better reflect its purpose. If you have
1848 customized this setting in /etc/rc.conf you need to update it to
1852 xorg 7.4 wants to configure its input devices via hald which does not
1853 yet work with USB2. If the keyboard/mouse does not work in xorg then
1855 Option "AllowEmptyInput" "off"
1856 to your ServerLayout section. This will cause X to use the configured
1857 kbd and mouse sections from your xorg.conf.
1860 The GENERIC kernels for all architectures now default to the new USB2
1861 stack. No kernel config options or code have been removed so if a
1862 problem arises please report it and optionally revert to the old USB
1863 stack. If you are loading USB kernel modules or have a custom kernel
1864 that includes GENERIC then ensure that usb names are also changed over,
1865 eg uftdi -> usb2_serial_ftdi.
1867 Older programs linked against the ports libusb 0.1 need to be
1868 redirected to the new stack's libusb20. /etc/libmap.conf can
1870 # Map old usb library to new one for usb2 stack
1871 libusb-0.1.so.8 libusb20.so.1
1874 All USB ethernet devices now attach as interfaces under the name ueN
1875 (eg. ue0). This is to provide a predictable name as vendors often
1876 change usb chipsets in a product without notice.
1879 The ichsmb(4) driver has been changed to require SMBus slave
1880 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1881 All of the other SMBus controller drivers require left-justified
1882 slave addresses, so this change makes all the drivers provide the
1886 INET6 statistics (struct ip6stat) was updated.
1887 netstat(1) needs to be recompiled.
1890 NTFS has been removed from GENERIC kernel on amd64 to match
1891 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1892 will load ntfs.ko module automatically when NTFS support is
1893 actually needed, unless ntfs.ko is not installed or security
1894 level prohibits loading kernel modules. If either is the case,
1895 "options NTFS" has to be added into kernel config.
1898 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1899 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1900 800061. User space tools that rely on the size of struct tcpcb in
1901 tcp_var.h (e.g. sockstat) need to be recompiled.
1904 ng_tty(4) module updated to match the new TTY subsystem.
1905 Due to API change, user-level applications must be updated.
1906 New API support added to mpd5 CVS and expected to be present
1907 in next mpd5.3 release.
1910 With __FreeBSD_version 800060 the makefs tool is part of
1911 the base system (it was a port).
1914 The afdata and ifnet locks have been changed from mutexes to
1915 rwlocks, network modules will need to be re-compiled.
1918 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1919 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1920 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1921 architecture and 40 bytes on 64-bit architecture. The userland
1922 applications "arp" and "ndp" have been updated accordingly.
1923 The output from "netstat -r" shows only routing entries and
1924 none of the L2 information.
1927 __FreeBSD_version 800057 marks the switchover from the
1928 binary ath hal to source code. Users must add the line:
1930 options AH_SUPPORT_AR5416
1932 to their kernel config files when specifying:
1936 The ath_hal module no longer exists; the code is now compiled
1937 together with the driver in the ath module. It is now
1938 possible to tailor chip support (i.e. reduce the set of chips
1939 and thereby the code size); consult ath_hal(4) for details.
1942 __FreeBSD_version 800054 adds memory barriers to
1943 <machine/atomic.h>, new interfaces to ifnet to facilitate
1944 multiple hardware transmit queues for cards that support
1945 them, and a lock-less ring-buffer implementation to
1946 enable drivers to more efficiently manage queueing of
1950 A new version of ZFS (version 13) has been merged to -HEAD.
1951 This version has zpool attribute "listsnapshots" off by
1952 default, which means "zfs list" does not show snapshots,
1953 and is the same as Solaris behavior.
1956 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1959 The uhci, ohci, ehci and slhci USB Host controller drivers have
1960 been put into separate modules. If you load the usb module
1961 separately through loader.conf you will need to load the
1962 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1963 controller add the following to loader.conf:
1969 The ABI used by the PMC toolset has changed. Please keep
1970 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1974 atapci kernel module now includes only generic PCI ATA
1975 driver. AHCI driver moved to ataahci kernel module.
1976 All vendor-specific code moved into separate kernel modules:
1977 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1978 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1979 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1980 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1983 The TTY subsystem of the kernel has been replaced by a new
1984 implementation, which provides better scalability and an
1985 improved driver model. Most common drivers have been migrated to
1986 the new TTY subsystem, while others have not. The following
1987 drivers have not yet been ported to the new TTY layer:
1990 cy, digi, rc, rp, sio
1996 ng_h4, ng_tty, ppp, sl, snp
1998 Adding these drivers to your kernel configuration file shall
1999 cause compilation to fail.
2002 ntpd has been upgraded to 4.2.4p5.
2005 OpenSSH has been upgraded to 5.1p1.
2007 For many years, FreeBSD's version of OpenSSH preferred DSA
2008 over RSA for host and user authentication keys. With this
2009 upgrade, we've switched to the vendor's default of RSA over
2010 DSA. This may cause upgraded clients to warn about unknown
2011 host keys even for previously known hosts. Users should
2012 follow the usual procedure for verifying host keys before
2013 accepting the RSA key.
2015 This can be circumvented by setting the "HostKeyAlgorithms"
2016 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
2019 Please note that the sequence of keys offered for
2020 authentication has been changed as well. You may want to
2021 specify IdentityFile in a different order to revert this
2025 The sio(4) driver has been removed from the i386 and amd64
2026 kernel configuration files. This means uart(4) is now the
2027 default serial port driver on those platforms as well.
2029 To prevent collisions with the sio(4) driver, the uart(4) driver
2030 uses different names for its device nodes. This means the
2031 onboard serial port will now most likely be called "ttyu0"
2032 instead of "ttyd0". You may need to reconfigure applications to
2033 use the new device names.
2035 When using the serial port as a boot console, be sure to update
2036 /boot/device.hints and /etc/ttys before booting the new kernel.
2037 If you forget to do so, you can still manually specify the hints
2038 at the loader prompt:
2040 set hint.uart.0.at="isa"
2041 set hint.uart.0.port="0x3F8"
2042 set hint.uart.0.flags="0x10"
2043 set hint.uart.0.irq="4"
2047 The gpt(8) utility has been removed. Use gpart(8) to partition
2051 The version that Linuxulator emulates was changed from 2.4.2
2052 to 2.6.16. If you experience any problems with Linux binaries
2053 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2054 if it fixes the problem contact emulation mailing list.
2057 ISDN4BSD (I4B) was removed from the src tree. You may need to
2058 update a your kernel configuration and remove relevant entries.
2061 I have checked in code to support multiple routing tables.
2062 See the man pages setfib(1) and setfib(2).
2063 This is a hopefully backwards compatible version,
2064 but to make use of it you need to compile your kernel
2065 with options ROUTETABLES=2 (or more up to 16).
2068 The 802.11 wireless support was redone to enable multi-bss
2069 operation on devices that are capable. The underlying device
2070 is no longer used directly but instead wlanX devices are
2071 cloned with ifconfig. This requires changes to rc.conf files.
2072 For example, change:
2073 ifconfig_ath0="WPA DHCP"
2076 ifconfig_wlan0="WPA DHCP"
2077 see rc.conf(5) for more details. In addition, mergemaster of
2078 /etc/rc.d is highly recommended. Simultaneous update of userland
2079 and kernel wouldn't hurt either.
2081 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2082 modules were merged into the base wlan module. All references
2083 to these modules (e.g. in kernel config files) must be removed.
2086 psm(4) has gained write(2) support in native operation level.
2087 Arbitrary commands can be written to /dev/psm%d and status can
2088 be read back from it. Therefore, an application is responsible
2089 for status validation and error recovery. It is a no-op in
2090 other operation levels.
2093 Support for KSE threading has been removed from the kernel. To
2094 run legacy applications linked against KSE libmap.conf may
2095 be used. The following libmap.conf may be used to ensure
2096 compatibility with any prior release:
2098 libpthread.so.1 libthr.so.1
2099 libpthread.so.2 libthr.so.2
2100 libkse.so.3 libthr.so.3
2103 The layout of struct vmspace has changed. This affects libkvm
2104 and any executables that link against libkvm and use the
2105 kvm_getprocs() function. In particular, but not exclusively,
2106 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2107 The effects are minimal, but it's advisable to upgrade world
2111 The latest em driver no longer has support in it for the
2112 82575 adapter, this is now moved to the igb driver. The
2113 split was done to make new features that are incompatible
2114 with older hardware easier to do.
2117 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2118 likewise the kernel option is now GEOM_LINUX_LVM.
2121 The default NFS mount mode has changed from UDP to TCP for
2122 increased reliability. If you rely on (insecurely) NFS
2123 mounting across a firewall you may need to update your
2127 Belatedly note the addition of m_collapse for compacting
2131 The fts(3) structures have been changed to use adequate
2132 integer types for their members and so to be able to cope
2133 with huge file trees. The old fts(3) ABI is preserved
2134 through symbol versioning in libc, so third-party binaries
2135 using fts(3) should still work, although they will not take
2136 advantage of the extended types. At the same time, some
2137 third-party software might fail to build after this change
2138 due to unportable assumptions made in its source code about
2139 fts(3) structure members. Such software should be fixed
2140 by its vendor or, in the worst case, in the ports tree.
2141 FreeBSD_version 800015 marks this change for the unlikely
2142 case that a portable fix is impossible.
2145 To upgrade to -current after this date, you must be running
2146 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2147 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2150 The ADAPTIVE_GIANT kernel option has been retired because its
2151 functionality is the default now.
2154 The AT keyboard emulation of sunkbd(4) has been turned on
2155 by default. In order to make the special symbols of the Sun
2156 keyboards driven by sunkbd(4) work under X these now have
2157 to be configured the same way as Sun USB keyboards driven
2158 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2160 Option "XkbLayout" "us"
2161 Option "XkbRules" "xorg"
2162 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2165 It has been decided that it is desirable to provide ABI
2166 backwards compatibility to the FreeBSD 4/5/6 versions of the
2167 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2168 broken with the introduction of PCI domain support (see the
2169 20070930 entry). Unfortunately, this required the ABI of
2170 PCIOCGETCONF to be broken again in order to be able to
2171 provide backwards compatibility to the old version of that
2172 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2173 again. As for prominent ports this affects neither pciutils
2174 nor xorg-server this time, the hal port needs to be rebuilt
2178 The misnamed kthread_create() and friends have been renamed
2179 to kproc_create() etc. Many of the callers already
2180 used kproc_start()..
2181 I will return kthread_create() and friends in a while
2182 with implementations that actually create threads, not procs.
2183 Renaming corresponds with version 800002.
2192 Avoid using make -j when upgrading. While generally safe, there are
2193 sometimes problems using -j to upgrade. If your upgrade fails with
2194 -j, please try again without -j. From time to time in the past there
2195 have been problems using -j with buildworld and/or installworld. This
2196 is especially true when upgrading between "distant" versions (eg one
2197 that cross a major release boundary or several minor releases, or when
2198 several months have passed on the -current branch).
2200 Sometimes, obscure build problems are the result of environment
2201 poisoning. This can happen because the make utility reads its
2202 environment when searching for values for global variables. To run
2203 your build attempts in an "environmental clean room", prefix all make
2204 commands with 'env -i '. See the env(1) manual page for more details.
2206 When upgrading from one major version to another it is generally best
2207 to upgrade to the latest code in the currently installed branch first,
2208 then do an upgrade to the new branch. This is the best-tested upgrade
2209 path, and has the highest probability of being successful. Please try
2210 this approach before reporting problems with a major version upgrade.
2212 When upgrading a live system, having a root shell around before
2213 installing anything can help undo problems. Not having a root shell
2214 around can lead to problems if pam has changed too much from your
2215 starting point to allow continued authentication after the upgrade.
2219 When upgrading the boot ZFS pool to a new version, always follow
2222 1.) recompile and reinstall the ZFS boot loader and boot block
2223 (this is part of "make buildworld" and "make installworld")
2225 2.) update the ZFS boot block on your boot drive
2227 The following example updates the ZFS boot block on the first
2228 partition (freebsd-boot) of a GPT partitioned drive ad0:
2229 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2231 Non-boot pools do not need these updates.
2235 If you are updating from a prior version of FreeBSD (even one just
2236 a few days old), you should follow this procedure. It is the most
2237 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2239 make kernel-toolchain
2240 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2241 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2243 To test a kernel once
2244 ---------------------
2245 If you just want to boot a kernel once (because you are not sure
2246 if it works, or if you want to boot a known bad kernel to provide
2247 debugging information) run
2248 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2249 nextboot -k testkernel
2251 To just build a kernel when you know that it won't mess you up
2252 --------------------------------------------------------------
2253 This assumes you are already running a CURRENT system. Replace
2254 ${arch} with the architecture of your machine (e.g. "i386",
2255 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2257 cd src/sys/${arch}/conf
2258 config KERNEL_NAME_HERE
2259 cd ../compile/KERNEL_NAME_HERE
2264 If this fails, go to the "To build a kernel" section.
2266 To rebuild everything and install it on the current system.
2267 -----------------------------------------------------------
2268 # Note: sometimes if you are running current you gotta do more than
2269 # is listed here if you are upgrading from a really old current.
2271 <make sure you have good level 0 dumps>
2273 make kernel KERNCONF=YOUR_KERNEL_HERE
2275 <reboot in single user> [3]
2282 To cross-install current onto a separate partition
2283 --------------------------------------------------
2284 # In this approach we use a separate partition to hold
2285 # current's root, 'usr', and 'var' directories. A partition
2286 # holding "/", "/usr" and "/var" should be about 2GB in
2289 <make sure you have good level 0 dumps>
2292 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2293 <maybe newfs current's root partition>
2294 <mount current's root partition on directory ${CURRENT_ROOT}>
2295 make installworld DESTDIR=${CURRENT_ROOT}
2296 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2297 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2298 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2299 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2300 <reboot into current>
2301 <do a "native" rebuild/install as described in the previous section>
2302 <maybe install compatibility libraries from ports/misc/compat*>
2306 To upgrade in-place from stable to current
2307 ----------------------------------------------
2308 <make sure you have good level 0 dumps>
2310 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2312 <reboot in single user> [3]
2319 Make sure that you've read the UPDATING file to understand the
2320 tweaks to various things you need. At this point in the life
2321 cycle of current, things change often and you are on your own
2322 to cope. The defaults can also change, so please read ALL of
2323 the UPDATING entries.
2325 Also, if you are tracking -current, you must be subscribed to
2326 freebsd-current@freebsd.org. Make sure that before you update
2327 your sources that you have read and understood all the recent
2328 messages there. If in doubt, please track -stable which has
2329 much fewer pitfalls.
2331 [1] If you have third party modules, such as vmware, you
2332 should disable them at this point so they don't crash your
2335 [3] From the bootblocks, boot -s, and then do
2340 adjkerntz -i # if CMOS is wall time
2341 Also, when doing a major release upgrade, it is required that
2342 you boot into single user mode to do the installworld.
2344 [4] Note: This step is non-optional. Failure to do this step
2345 can result in a significant reduction in the functionality of the
2346 system. Attempting to do it by hand is not recommended and those
2347 that pursue this avenue should read this file carefully, as well
2348 as the archives of freebsd-current and freebsd-hackers mailing lists
2349 for potential gotchas. The -U option is also useful to consider.
2350 See mergemaster(8) for more information.
2352 [5] Usually this step is a noop. However, from time to time
2353 you may need to do this if you get unknown user in the following
2354 step. It never hurts to do it all the time. You may need to
2355 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2356 install) after the buildworld before this step if you last updated
2357 from current before 20130425 or from -stable before 20130430.
2359 [6] This only deletes old files and directories. Old libraries
2360 can be deleted by "make delete-old-libs", but you have to make
2361 sure that no program is using those libraries anymore.
2363 [8] In order to have a kernel that can run the 4.x binaries needed to
2364 do an installworld, you must include the COMPAT_FREEBSD4 option in
2365 your kernel. Failure to do so may leave you with a system that is
2366 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2367 required to run the 5.x binaries on more recent kernels. And so on
2368 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2370 Make sure that you merge any new devices from GENERIC since the
2371 last time you updated your kernel config file.
2373 [9] When checking out sources, you must include the -P flag to have
2374 cvs prune empty directories.
2376 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2377 "?=" instead of the "=" assignment operator, so that buildworld can
2378 override the CPUTYPE if it needs to.
2380 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2381 not on the command line, or in /etc/make.conf. buildworld will
2382 warn if it is improperly defined.
2385 This file contains a list, in reverse chronological order, of major
2386 breakages in tracking -current. It is not guaranteed to be a complete
2387 list of such breakages, and only contains entries since October 10, 2007.
2388 If you need to see UPDATING entries from before that date, you will need
2389 to fetch an UPDATING file from an older FreeBSD release.
2391 Copyright information:
2393 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2395 Redistribution, publication, translation and use, with or without
2396 modification, in full or in part, in any form or format of this
2397 document are permitted without further permission from the author.
2399 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2400 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2401 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2402 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2403 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2404 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2405 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2406 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2407 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2408 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2409 POSSIBILITY OF SUCH DAMAGE.
2411 Contact Warner Losh if you have any questions about your use of